[syslinux] Announcing a patch series for isohybrid.c

Geert Stappers stappers at stappers.nl
Sun Jun 22 13:31:39 PDT 2014


Op 2014-06-22 om 21:02 schreef Thomas Schmitt:
> Hi,
> 
> following will be 6 patch proposals for isohybrid.c
> 
> 1: Encode GPT partition names as UTF-16LE
> 
> 2: Correct blocking factor in APM partition block counts
> 
> 3: Correct end block address of first GPT partition
> 
> 4: Write GPT backup to the very end of the image
> 
> 5: Change all fseek(3) to fseeko(3)
> 
> 6: Introduce option --mbr and make isohybrid.c compilable standalone
> 
> If the form needs adjustments, i whould be able to reproduce the
> patches.

Those patches regenerated from git are send to Thomas and the ML.
We will see is they go a cross various e-mail (spam) filters.


> The state after patch 6 was tested by re-hybdridization of
> yetserday's Fedora-Live-Desktop-x86_64-20-1.iso.
> The result was loaded by xorriso which then assessed and
> reported the MBR, GPT, and APM equipment.
> 
> One false positive complaint appears:
>   GPT backup problems:      Implausible header LBA 1951743, Implausible array LBA 1951711
> It could be avoided by adjusting the ISO filesystem size
> to the size of the image file. Regrettably this causes
> isohybrid.c to add another MiB of padding if the image
> is isohybridized again.
> So i will ponder how to recognize the habit of isohybrid.c
> as a tolerable deviation - or how to let isohybrid.c recognize
> that the filesystem already has a backup GPT at its end,
> so that no new space is needed.

Please do.


> Have a nice day :)
> 
> Thomas


Groeten
Geert Stappers
-- 
Leven en laten leven


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